Liquid dispensing apparatus



Aug. 18, 193 1. H. F. JACKSON ET AL LIQUID DISPENSING APPARATUS FiledMarch 5, 1928 2 Sheets-Sheet 1 1 i l l lillrlllllllll CHARLES 0. STRAUB.HARRY FJACKSO/V.

AT'TQRNEX Aug. 18, 1931.

- H. F. JACKSON ET AL LIQUID DISPENSING APPARATUS Filed March 3, 1928 2Sheets-Sheet .B.. RMM M Wm M 5 .6. VOA T ws 7 ,ME A. an HR Patented Aug.18, 1931 1 man? I. JACKSON um enemas oas'rnau'aor sramormn, ozno Broomnrsrsivsrua nrrmrus Application medial-ch s, 1928. sci-ac in. 258,977.

This invention relates to liquid dispensing apparatus and moreparticularly to gasoline pum s such as are commonly employed at antomoile filling stations. I p One object of the invention is to provide adispensing apparatus of this kind which will deliver accuratel measuredquantities of liquid and which Wlll be of such a character that thecustomer can readily ascertain whether or not he is receiving fullmeasure.

A further object of the invention is to provide such an a paratus withtwo measuring receptacles which alternately receive liqui from adelivery bowl and discharge the same throu h the usual hose and havingmeans where y the receptacles are alternately con.- fiected with thedelivery bowl and with the ose. y A further object of the invention isto provide such an apparatus in which the valves which control t eadmission of liquid to and the delivery of the same from the measuringreceptacles will be actuated from the pump operating mechanism.

as the app'aratusis described in detail. 7

' In the accompanying drawings Fig. 1 is a front elevation'of adispensing apparatus embodymg our invention, with one of the measurmgreceptacles partly broken away; Fig. 2

is a vertical section, partly broken away, of

---the apparatus shown in ig. 1; 3 as a front elevation. of a device forcausing predetermined quantities ofliquid to .be deliv- Fig. 4 isaverticalsectional view of e tional view taken .throu h'the valvescontrolling the admissioii' 6 liquid to and the delivery of the samefrom the measuring re- 40 ceptacles; Fig. 6- is-a'n elevationof thevalve actuating devices Fig.7 is a longitudinal sectional view of thespeed controlled mechanism,

for controlling the operation of the valves;

.Fig; 8 is a detail view of the cdnnection be-" 46' tween the clutch andthe sleeve of the speed controlled mechanism; Fig. 9 is an elevation ofthe clutch; and Fig. 10 1s a sectional detail view of the device forcontrolling the connection between the pump operatingmecham'sm to andthe valve controllmg mechanism.

erated or power operated.

Other objects of the invention will appear. 4 storage reservoir, is anoverflow pipell.

housing where it is provided with means to the bowl.

eviceshown in Fig. 3.; Fig. 5 is a seccustomer to ascertain forhimselfwhether or awellknowntypehutitwillbeun erstoodthat theiavelltifill may11 takg lwirgrious forms an may ap to 'qui pe apparatusof varibus kinds, whether han ops In that embodiment of the, inventionhere illustrated the pump comprises i a hollow standard or ho v 1 uponthe upper end of which is supports a transparent delivery bowl 2.Mounted in the lower portion of the housing is a pump comprising acylinder 3 which is connected by a supply pipe 4 with a suitable sourceof supply or liquid, such as an underground reservoir. The piston 5 ofthe pump is connected b a piston rod 6 with a cross head 7 whic in turnis con-' nected by a pitman 8 with a gear 9, which gear constitutes acrank wheel for operating the pump. Liquid is delivered from the u ofthe bowl, throughthe stan ard to the The gear 9 meshes with a pinion 12which V is mounted on a shaft 13 journaled insuit-.

able bearin in the housing 1 one end of the shaft extengng beyond theoliter wall of the I such as a crank 14 for-rotating thesame and therebyoperating thepump to deliver liquid Liquid is delivered from thedelivery bowl 2 to the customers automobile, or to some otherreceptacle,-through a flexible discharge pipe or hose 15. In order toinsure absolute accuracy of measuremenband to enable the nothe isreceiving full measure we have ,interposedbetween the delivery bowl 2and the hose 15 a measuring device which preferably consists of a. pairof measuring receptacles 16fand17, the walls of which are transparent.so that their contents ma be readily I inspected. Means are provide foralter-. nately-connectin ;-the two measuring recep-- tacles with theeliverybowl and for alternately connecting the two measuring reoep;

' tacles with the hose 15, the connecting means of the liquid from ofthe liquid is lowered, as the contents of the 1 receptacle aredischarged, the float will drop being of such a character that when onemeasuring receptacle is connected with the delivery bowl the othermeasuring may be connected with the hose, thereby enabling onereceptacle to be filled and to then be discharged through the hose whilethe other receptacle is being filled. The connection between-themeasuring receptacle and the delivery bowl preferably comprises a valve,the casing 18 of which is connected With a conduit 19 leading from thedelivery bowl 2, and which has two conduits 20 leading to theresepective measuring receptacles 16 and 17. Mounted in the casing is ar0- tary valve member 21 having a diametrically arranged port 22, oneend of which com-' municates with an elongated channel 23 in the upperpart of the valve casing and which when in one'position will connectthedelivery bowl with the measuring receptacle 16 and which when movedthrough a quarter rotation will connect the delivery bowl with the othermeasuring receptacle, 17. It will be apparent that the continuedrotation of the valve member 22 in one direction will connect the twomeasuring receptacles alternately with the deliveryhbowl. The discharget e tacles is also controlled by a valve compris ing a casing 24 havingports 25 leading from the respectivemeasuring receptacles, 16 and 17,and having at its lower end a discharge port 26 with which thehose 15 isconnected. A rotary valve member 27 mounted within the valve casing hasa diametrical port 28 to alternately connect the measuring receptacleswith the hose, in the manner above described. The two valve membersareso arranged with relation one to the other that when the deliverybowl isconnected with one measuring receptacle the other measuring receptaclewill be connected with the hose,

and when the two valves have been moved through a quarter rotation theconnections will be reversed.

Each of the measuring receptacleshas in its upper end a vent 83 and isprovided with means controlled by the level of the liquid within thereceptacle to open and close that vent. As here shown, a valve 81 ismounted in the vent and is of such a character that -when unrestrainedit will assumean open position, thus permittm air to enter or leave themeasuring rece tac e. Mounted within the receptacle is a oat 82 soarranged-that when the receptacle is full the float will con- .tact withthe inner end of the valve and seat the same, thus preventing the escapeof liquid through the vent."v As soon as the level away from the valveandpermit the same to move to its open osition.

The valve mem receptacle measuring recep rs 21 and "may be opierated inany suitable manner but we prefer delivery bowl while measuredquantities of liquid are being withdrawn therefrom, there-' by enablingan indefinite quantity of liquid to be measured and delivered from theapparatus without interruption. In that form of controlling mechanismhere. shown we have mounted on the shaft 13 of the pump operatingmechanism a pinion 29 which meshes with a gear 30 rotatably mounted on astud 31 carried by the housing 1. Rigidly secured to the gear 30 is adisk 32 having recesses. 33 in diametrically opposite sides thereof.Each of the valves members 21 and 27 has a stem 34 projecting beyond theinner end thereof and, in the present instance, ex-

tending into the housing 1. Rigidly secured to the inner end of eachvalve stem is a locking member or star wheel 35 which, in the are soarranged that the curved edges of the locking members will have contactwith the concentric edge of the disk and will thereby lock the valvesagainstrotation while permitting the free movement of the disk. Rigidlyconnected with each locking plate is a.

tripping device 36 whidh is also shown as an approximately square platethe corners of which are so shaped that they will constitute tripfingers. The tripping device is so' arranged with relation to thecorresponding locking device that when the latter is in contact with theconcentric edge of the disk 32 one of the fingers of the tripping devicewill extend inwardly beyond the edge of the disk and into the path of astud or roller 37 carried by the disk, there bein two of these studsarranged in advance 0 the respective recesses 33.

It will be apparent that as the disk is rotated, in the direction of thearrow in Fi 6, the studs 37 will engage the trip fingers ust as therecesses 33 reach the adjacent corners of the locking plate and as thecontinued movement of the disk rotates the tripping device and thelocking plate the corner of the latter will enter the recess 33, thuspermitting the locking device, and consequently the valve with which itis connected, to rotate. As the disk continues .to rotate the combinedaction of the stud 37 pn the trip finger and the lockin device through aquarter of. a

rotation, t ereby reversing the position of the valve with which thelocking device is connected.

The valve actuating mechanism being opi nism will be actuated frome'rated from the pinion 29 on the shaft 13 of thepump operatingmechanism it will be apparent that the operation of the crank 14 willoperate the pump to suppl liquid to the delivery bowl and will periodithe valves to causethetwo measuring receptacles to be alternately"filled and dis- 4 charged. The gearing is of such a character that withany usual speed of operation of the crank 14 there will be ample timefor the one measuring receptacle to drain and the other to fill betweensuccessive reversals of the valves. To avoid the possibility of the pumpoperating mechanism being actuated at excessive speed, which wouldresult in the valves being reversed before the one measuring receptaclewas empty or the other one filled, we have provided speed controlledmeans for interrupting the operation of the 50 valves in the event thepump operatin mechanism is actuated at an excessive spec For thispurpose the pinion 29 is rotatably mounted on the shaft 13 and isrigidly connected with a gear 38 also loosely mounted 2 on the shaft 13.The gear 38 meshes with a pinion 39 rotatably mounted on a shaft 40mounted within the housing 1 and having sei-c cured thereto a pinion 41which meshes with a gear 42 on the shaft 13, so that the move- Ian mentof the shaft 13 is transmitted to the shaft and from the shaft 40 tothegear 38 and pinion 29. As has been stated the pinion 39 is looselymounted on the shaft 40 and rigidlyconnected with this pinion'is aclutch 85 member 43, here shown in the form of a brake drum having aninternal friction surface.

. Arranged within the brake drum or clutch" member is a friction band 44which, as shown in Fig. 9 comprises two parts or shoes which areconnected at their lower ends with an arm 45 carriedby a, hub 46 rigidlysecured to the shaft 40. Arranged between the upper ends of the twoparts of the brake ban 47 which, in the present instance, is carried bya shaft 48 journaled'in bearings in the hub and in a bracket 49 carriedby the hub. Rigidly secured to the shaft 48 is an arm 50 which isconnected by a link 51 with a sleeve 52 slidabl mounted on the shaft 40.A spring 53 co ed between the end of the sleeve and a'fixed stop,such-as a nut 54, on the shaft 40, presses the sleeve toward the clutchand holds the cam 47 normally in a position to expand the friction bandand thus connect the drum 43 and pinion 39 with the shaft so that-thevalve 0 ratin mecha-- gs sha 13. A

centrifugally 0 rated device carried'by the shaft 40 an ashoreshown,this device comprises two weighted arms 55 arranged on opposite;sides of the shaft and pivotally mounted on a'pin 56 which is securedtothe shaft and extends through the slots 57 in the opposite sides ofthe sleeve 52, thereby percally reverse with-the hub the latter will befree to rotate therewith. When the key is moved the right, fromtheosition shown m Fig. 10,

mitting' the sleeve to have axialrgmovement as with relation to the pin.Connected with the weighted arms are fingers 58 which extend into theslots 57 and en age the ends thereof so that when the weig ted arms aremoved outwardly b centrifugal force, due to an excessive spec ofrotation, the fingers W111 impart axial movement to the sleeve and thusmove the cam 47 to an inoperative position, which will permit thefriction band to contract and thus disconnect the drum 43 from the shaft40 and interrupt the 01131;

'ation of the valve actuating mechanism.

soon as the speed of rotation has been reduced to normal the wei htswill return to their normal position an the spring 53 will again causethe clutch members to be engaged.

. It is sometimes desirable that the valve controlling mechanism shouldbe operated independently of the pump. as when the delivery bowl is tobe drained at night. It is also sometimes desirable that the ump shouldbe operated independently o? the valve controlling mechanism, as, for.example, when the bowl is to be filled prior tothe deliver of anyliquid. We have therefore provided a clutch mechanism by means of whicheither or both the pump and the valve operating mechanism may beconnected with theshaft 13.and crank 14. In the present construction, asshown in detail in Fig. 10, the pinion 12 and gear 42 are rotatablymounted on the shaft 13 and are pro.- vided in-'- their hubs withlongitudinal slots 60 to receive a clutch member or longitudinallymovable. key 61 which is slidably mounted'in a groove 62 in the shaft13. This key has a recess 63 of a length slightly greater than thelength of the hub of the gear 42 so that when this recess is moved inline on the shaft. When the recess in the key is in line with the gear42 the outer end portion of the key will project into the slot of the Vhubof the gear -12-so that the pum will be connected with the shaft butthe va ve operating mechanism will be disconnected there-. from. Whenthe key or clutch member is moved to the left,in Fi 10, to cause thesameto enter the slot in t e hub of the gear 42, the opposite end of thekey will be withdrawn from the hub of the gear 12 thereby disconnectingthe pump from the s aft and A connecting t e. valve operating mechanismthe left hand en of the key will enter the slot in the hub of the ar, 42and the ri ht handend of the key W111 remain in the ot in the hub of thepinion 12, thereby connecting both the ,pump and the valve operatingmechanism-mthjthe shaft, this be the normal operative 1 position of theutch mechanism. The clutch member or key 61 ma be 0 rated in anysuitable manner but,

ere own, a grooved collar 64 is sl1 d- 180 lever 66 is connected withthe yoke for actu :ating the clutch member.

The apparatus is also provided with mechanism which may be set tointerrupt the.

operation of the valves when a predetermined quantity of liquid has beendischarged. As ed on the apparatus a ove the measuring receptacles andhas mounted therein a nonrotatably stud shaft 68. Rotatably mounted onthis stud isa gear 69 which meshes with a pinion 70 on a pintle 71extending from the upper valve member 21, so that the gear 69 will berotated by the valve member. Rotatably mounted on the stud 68, in frontof the gear, is a dial 72 having on its outer portion a circumferentialseries of graduationswhich, in the present instance, are numbered fromone to ten to represent gallons. Rotatably mounted on the stud 68, infront of the dial, is a lever 73 having 'slidably mounted therein aspring pressed pin 74; The dial has a series of openmgs 7 5 and the gear69 has a series of openings 76 arranged in line with the openings 75 inthe dial and.

' adapted to receive the pin 7 4 which thereby serves to connect thedial and the gear one to the other. A spring 77 is connected at one endto the fixed stud 68 and at its other end 'to the dial so that it willbe placed under tension when the lever is moved with relation to thedial. An arm 78 carried by the supporting frame 67 has a forwardlyextending lug 79 which extends across the path of the lever 73 when thelatter has moved in a reverse direction. The dial 'has a projection V orlug 80 which contacts with the lug 79 to check the movement of the dialby the spring 77 and thereby retain the dial in its zero position. Whenthe customer callsfora given I quantity of liquid, say five gallons, thepin '45 7 4 is retracted and the lever rotated to bring the same intoline with the numeral 5 and the pin then inserted through thecorresponding openings 7 5 and 76 in the dial and the gear. Theoperation of the valve mechanism will then cause the dial to rotateuntil the leverengages the lug 79 at which time -it will be. in avertical position and this contactbetween the lever. and the lug willinter- 3 rupt the operation of the entire train of mechanism. The pin 74is then retracted to release the dial and permit the same to be restoredto its zero position by the spring 7 7 While we have shown and describedone embodiment of our'invention we wishit to be understood that we donot desire to be.

limited to the details thereof as various modifications may intheart. 6iHaving nowfully described our invention,

occur to a person skilled here shown, a supportinframe 67 is mount--crating means shaft, and a deliverypipe for said bowl, a

pair of measuring receptacles, meanscomprising a rotary valve toalternately. connect said receptacles with said delivery bowl,

other means comprisin a rotary valve to alternately connect salmeasuring recepta cle s with said delivery pipe, actuating mechamsm forsaid valves comprising a rotatable member, and devices connected withthe re- I spective valves and en member to hold said va movement and tovalves,

aging said rotatable ves normally against periodically actuate said anda geared connection between said ,rotatable member and said pumpoperating shaft.

2. In a li uid dispensing apparatus comprising a de 'very bowl, a pumpto supply liquid to said bowl, means for operating said pump, and adelivery pipe for said bowl, a measuring device' interposed between saidbowl and. said delivery pipe and comprising a pair of measuringreceptacles, valves to connect each of said measuring receptaclesalternately with said bowl and with said delivery pipe, said valves,being so arranged that when one measuring receptacle is connected withsaid bowl the other measuring receptacle will be connected erypipe,means controlled by said pump opfor actuating said valves to reversetheconnections between saidmeasuring receptacles and said bowl and saiddevery pipe, respectively, and speed controlled means to interrupt theoperation of said valve when said is actuated at a speed 1n excess of apredetermined rate.

with said delivump operating means 3. In a liquid dispensing apparatuscomprising a delivery bowl a pump to supply liquid to said bowl, meaiisforoperating said pump, and a delivery pipe for said bowl, a I

measuring device interposed between said bowl and said delivery pipe andcom rising a pair of measuring receptacles, va ves to connect each ofsaid measuring receptacles alternately with said'bowl and with saiddevery that w en one measuring receptacle is connected with said bowlthe other measuring receptacle will be connected'with said deliv-" erypipe, operating mechanism for said valves, means for ope'rativelyconnectin said valve 0 crating mechanism with said pump operating meanscomprising a clutch anda centrifu'gally operated device to actulpipe,said valves being so arranged ate said clutch to interrupt the operationof said valve operating mechanism when said pump operating mechanism isactuated at excessive speed. 4

- said shaft, and a a pair of measur ng, receptacles interposed 4. Inarli apparatus comprising a do very bowl, a pump to supply liquid tosaid bowl, an operating shaft con nected with said pump, means foractuatin elivery pipe for said bow between said delivery bowl and saiddelivery being so arr pipe, valves to connect each of said measurmgreceptacles alternately with said bowl and with said delivery pipe, saidvalves d that when one measurmg receptacle :5 connected with said bowlump operating she 1 g and said fi'iction band.

the other mea receptacle will be connected with said dehvery pipe, meansfor op-' erating said valves to periodically reverse said connections,and a connection between said valve opera mechanism and said comprisinga friction um ,operatively connected with said valve operatingmechanism, a friction band op-.

eratively connected with said shaft and a centrifugally operated deviceto control the:

frictional contact between said friction drum 5. In a li uid apparatuscomprising a de 'very bowl, a pump to supply liquid to said bowl, anoperating shaft connected with said pump, means for actuatin said shaft,and a delivery pipe for said bow a pair of measur' receptacles interosed between said delive bowl and said elivcry pipe, valves to connecteach of said measmeasuring rece tacle will be connected with unngreceptacles alternately with said bowl and with said delivery pipe, saidvalves being so arranged that when one me receptacle is connected withsaid bowl the other v said delivery p1pe, means for operating saidvalves to periodically. reverse said connections, said means comprisinga pinion loosely mounted on said pump shaft, a gear connected. 7 withsaid pinion an rotatably mounted on i said pump operating shaft, asecond shaft, a geared connection between said second shaft said pumpoperating shaft, a friction drumand said springoperating' shaft a inionrotatably mounted on said second sha and meshing with the firstmentioned gear on connected with the last mentioned inion,

' a friction band arranged within sai and connected with saidsecondshaft,

spirm actuated means to holdsaid friction an i normally in contactwithsaid friction drum, and a centrifugal device to move said means" vprising a de 'very bowl a pumpto supply liquid to said bowl, meaiis foroperating said 7 against the action of said sprin to disconnect saidfriction band from sai drum.

6. In a li uid apparatus'compump, and ardclivery pipe for said bowl, ameasuring device interposed between said bowl andsaid delivery pipe andcomprising a pair of measuring receptacles, valves to connect' each ofsaid m receptacles alternately with said bowl an with said delivevalves, a sha means for rotating said shaft, a pinion r0 necting thesame from said pump operating means.

7. In a 1i uid dispensing apparatus'comprising a de 'very bowl, a pumpto supply liquid to said bowl and a delivery pipe. or

said bowl, a pair ofmeasuring rece tacles interposed between said bowland sai delivery p1pe, valves to connect each of said measuringreceptacles alternatelywith said bowl and with said delivery pipe, saidvalves being so arranged that when one measuring receptacle is connectedwith said bowlthe other measuring receptacle will be connected withvalves, an actuating device, and means for connecting said actuatingdevice with elther said valve operating mechanism or said pump, or forconnecting the same with both said operating mechanism and said pump. f

8. In a 'li uid dispensing apparatus comvsaid delivery'pipe, means foroperating said prising a de 'very bowl, 'apeluimp to supply I liquid tosaid bowl and a very plpe said bowl, a pair of measuring recetaclesinterposed between said bowl and em dehvery p1pe, valves toconnect each of said measuring receptacles alternately with said bowland with said delivery ipc, said valves being so arranged that when onemeasuring receptacle is connected with said bowl the other measuringreceptacle will be connected i said delivery p1pe, means foroperating'said valves, a shaft, means to rotate said shaft, a earrotatably mounted on said shaft, a pm- 1on rotatably mountedon saidshaft, means to connect saidgear with said valvepperatmg mechanism,means to connect said puuon wit said pump, andmeans for connectin either4 said pinion or said gear .with said aft or for connecting both said pon and'said gear to said shaft. i

9. In a liquid dispensing apparatus comprising adelivery bowl, a pump tosupply liquid to said bowl and a delivery pipe forsaid bowl, a pairofmeasuring receptac es interposed between said bowl and said deliverypipe, valves to connect each of said measurmg receptacles alternatelywith said bowl and with said delivery pipe said valves being so arrangedthat when'one measuring receptacle is connected with'said bowl the othermeasuring receptacle will be connected with saiddelivery ptipe, meansfor operatm said having a longitudina slot,

tatably mounted on-said shaft, having a slot in the hub thereof andoperatively connected withsaid pump, a gear rotatably mounted on saidshaft, having a'slot in the hub thereof means for actuating said key. I10. In a liquid dispensing apparatus com-.

and operatively connected with said valve operatlng means, a keyslidably mounted in the slot in said shaft and having parts adapted tobe moved into and out of the slots in the hubs of said gear and saidpinion, and

prising a delivery bowl, a pump to supply liquid to said bowl, means foroperating said pump, and a delivery pipe for said bowl, a measuringdevice interposed between said bowl and said delivery pipe andcomprising a pair of measuring receptacles, valves to connect each ofsaid measuring receptacles alternately with said bowl and with saiddelivery pipe, said valves being so arranged that when one measuringreceptacle is connected with said bowl the other measuring receptacleliquid to said bowl, means for operating said pump, and a delivery pipefor said bowl, a measuring device interposed between said bowl and saiddelivery pipe and comprising a pair of measuring receptacles, valves toconnect each of said measuring receptacles alternately with said bowland with-said delivery pipe, said valves being so arranged that when onemeasurin receptacle is connected with said bowl the ot er measuringreceptacle will be connected with said delivery pipe, means foractuating said valves to reverse the connections between the respectivemeasurnig receptacles and said bowl and said delivery pipe, a rotatabledial, a gear rotatable about the axis of said dial, means to operat1velyconnect said gear with one of said valves, a lever rotatable about theaxis of saiddial with relation thereto, means carried by said lever forconnecting said dial and said gear to cause said dial to be actuatedfrom said valve, and means to interrupt the movement of said dial whensaid lever is restored to its normal position;

12. ha liquid dispensing apparatus coin-' prising a delivery bowl apump, to sup 1 hqu d to said how], means for operating s id pump, and adelivery-pipe for said bojwl, a

measuring deviceflinte osed' between said bowl'and said delivery pipeand comprising a pair of measuring receptacles, valves to. connect each'of said measuring receptacles alternately with said bowl and with saiddelivery pipe, said valves being so arranged that when one'measuringreceptacle isconnected wit said bowl the other measuring receptacle willbe connected with said delivery with said delivery pipe,

, each of clutch when said pipe, means for actuating said valves toreverse the connections between the respective measuring receptacles andsaid bowl and said delivery pipe, a rotatable dial having acircumferential series ofiindica'tin'g numbers, a

the movement of said lever when the latter has been returned to itsnormal position, and

a spring actingv on said dial to return the same to its zero positionwhen connected from said lever.

. 13. In a liquid dispensing apparatus, a

source of supply. for liquid to be dispensed comprising a pump andvoperating mechanism therefor, a delivery pipe, a air of measuringreceptacles interposed tween said source of supply and said deliverypipe, said measuring receptacles having an inlet to connect the samewith said source of supply'and an outlet toconnect the same with saiddelivery pipe, valves to so control said inlets and said outlets thatwhen one measuring receptacle is connected with said source of supplythe other measuring receptacle will be connected with said deliverypipe, actuating means for said valves operatively connected with saidpump operating mechanism, and speed controlled means to limit the speedat which said valve actuating means are operated.

14. In a liquid dispensing apparatus, a source ofsupply for liquid to bedispensed comprising a pump and operating mechanism therefor, a deliverypipe, a air of measuring receptacles interposed said source of supplyand said delivery pipe, each of said measuring receptacles having aninletto connect the same with said source of supply and an outlet toconnect the same with said delivery pipe, to control said inlets, asecond rotary valve to control said outlets, arranged that when onemeasurin tacle is connected with said source 0 rece pp 3 gearoperatively connected with one tween a rotary valve said valves being soit has been disthe other measuring receptacle will be connected withsaid delivery pipe, a valve actuating device, means comprising a clutchto connect said valve actuating device with said pump operatingmechanism, and a cen trifugally operated device to actuate said I puinpoperatin mechanism is actuated at an excessive spee 15. In a liquid disouroeof supply for hquid' to be dispensed COIDPIISlIlg a ensingapparatus, a

pump and operating mechanism therefor, a, delivery pipe, a pair of Vmeasuring receptacles interposed between?- said source'of supply andsaid-delivery pipe, each of said measuring receptacles having an inletto connect the same with said source of supply and an outlet to connectthe same with said delivery pipe, valves to so co trolsaid inlets andsaid outlets that/when one measuring receptacle is connected with saidsource of supply the other measuring receptacle will be connected withsaid delivery pipe, valve actuating mechanism, and means under thecontrol of the'operator for connecting said valve actuating mechanismwith and for disconnecting the same from said :pump operating mechanism.

15 16. In aliquid dispensing apparatus, a source of supply for liquid tobe dispensed comprising a pump and operating mechanism therefor, adelivery pipe, a pair of measuring receptacles interposed between 3 saidsource of supply and said deliver pipe, each of said measuringreceptacles havlng an inlet to connect the same with said source ofsupply and an outlet to connect the same with said delivery pipe, valvesto so control 35 said inlets and said outlets that when one measuringreceptacle is connected with said source of supplythe other measuringreceptacle will be connected with said delivery pipe, valve operatingmechanism, an actugo ating device, and means for connecting saidactuating device with either said valve operating mechanism or said pumpoperating mechanism or for connecting the same with both said valveoperatin mechanism and as said pump operatin mec anism.

i 17. In a liquid lspensing apparatus, a source of supply for liquid tobe dispensed. comprising a pump and operating mechanism therefor, adelivery pipe, a air of measuring receptacles interposed tween saidsource of-supply and said delivery pipe, valve controlled means forconnecting said receptacleswith said source of supply and with saiddelivery pipe, said connecting 5 means being so arranged that when one55 tures hereto.

measuring receptacle is connected with said source of supply the othermeasuring receptacle will be connected with said elivery N pipe, andmeans controlled by the operating 0 mechanism for said pump foractuating said connecting means to reverse said connections, atintervals determined by said operating mechanism.

In testimony whereof, we afiix our signa- 1 CHARLES o.' STRAUB. HARRY,JACKSON.

